Borough



J. T. WILLIAMS.

Lamp. No; 29,838. Patented Aug. 28, 1860.

N FEYERS. Pholo-Lithngnpher. Wmhingmm n. c.

UNITED STATES PATNT OFFIOE.

JNO. THOS. W'ILLIAMS, OF YORK BOROUGH, PENNSYLVANIA.

LAMP.

Specification of Letters Patent No. 29,888, dated August 28, 1860.

To all whom 'it may concern:

Be it known that I, JOHN THOMAS 11.- LIAMS, of York borough, in thecounty of York and State of Pennsylvania, have i11- vented a new anduseful Improvement in Lamp-Fixtures; and I do hereby declare that thefollowing is a full and exact de scription thereof, reference being hadto the drawings accompanying this, with the let ters of reference markedthereon.

A, Figure 1, is a reservoir made of tin or other material, of suflicientcapacity to contain a supply of oil for several months withoutreplenishing; it is placed in the upper part of the building, or in anyconvenient place suitable.

I3 is a feed pipe attached to the bottom of the reservoir and leading tothe lamps E, E, H, H, or to any number of lamps that may be attached.

C, is a stop cock, gate, or other contrivance to regulate the flow ofthe oil.

D, D, are arms of the lamps E, E. The lamps are mounted with theordinary burners and wicks adapted to the particular kind of materialintended to be burned.

F is an opening (in which a short tube is placed) made in the lamp orfeed pipe, in any convenient position; when on the side or front I closeit with glass, mica, or any transparent material. This opening is not tobe confounded with the small opening made in old style lamps for thesupply of oil. The supply opening in this case is at the connection ofthe feed pipe and lamp below the stop cock.

G is the floor of a building.

H, H, are two lamps, fed on same principle, with stop cocks and feedpipes, leading to the same reservoir as above, they have the openingsand short tube placed at I, I, and closed with glass or mica.

The whole fixtures made air tight to prevent leakage.

Operation: The object of my improvement is to facilitate the filling oflamps and yet prevent their overflow at the burner. It

is more especially adapted to suspended lights, and any number can besupplied from the same reservoir. The stop cook or gate O, being closedI fill the reservoir A with oil, which descends the pipe to O. WVhen Iwish to fill the lamps I open the stop cock and the oil descends intothe lamp; the height of the rising oil being in I dicated through theopening at F, I replace the stop cock when the lamp is full, therebypreventing overflow at the burner.

I am aware that fountains and reservoirs have been used, both in theArgand and other lamps; the object being to keep the oil on a level withthe burning end of the wick. My oil is raised by capillary attraction.Their reservoirs were necessarily near the burners, and were subject tooverflow from the expansion of the air in the cistern by heat; and asfar as I can learn there has been no means in any combined arrangementheretofore used for observing the height of the oil without opening thelamp at the burner or supply opening.

My plan is cleanly, practicable, and expeditious; and lamps withordinary burners can be replenished while burning without risk ofoverflow.

I do not claim the reservoir, stop cook, or lamp; but

Having thus described my invention I claim as new and desire to secureby Letters Patent The employment in combination with a lamp that issupplied from an elevated reservoir, of a transparent section F, whensaid section is arranged between the lamp and the oil supply, on a linehorizontal to the proper oil level of the lamp, so as to facilitate thereplenishing of the lamp without extinguishing the flame and withoutoverflow, all as herein shown and described.

JOHN THOMAS WILLIAMS.

feed pipe,

Vitnesses GEORGE M. SHETTER, I'IORACE BONHANE.

